Concrete reinforcement.



PATENTED OCT. 15, 1907.

Y, Ls. BARNES.y CONCRETE RBINFCRCBMBNT.

APPLICATION rum; JUNE 2a, 199C. y Hanns-SHEET z.

rarnnfr formen.

JOHN S. BARNES, OF DETROIT, MICHIGAN.

CONCRETE REINFOCEMENT.

.Specification of Letters Patent.

Parentesco@ 15,1907

Application mea me 28,1906. seriatiro. 323,82'7.

To all 'whom 'it mayv concern." I

Be it `lrnownvthat I, .Tous BARNES, a citizen of the United lStates,residing at Detroit, county of Wayne,

State1 of Michigan, have 'invented a certain new and` useful Improvement in Concrete' Reinforcements, anddeclare the following'to be a full,`clear, and exact dej scription of the same, such'as will enableA others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying draw-v .A ings, which form a part of this specification.

invention relates to' an improvement infmeans for'reinforcing concrete-'used in, the construction of beams, floors, co1umns,'etc., for buildings,'or other structures, shown in the accompanying drawings and more particularly set forth Yin the following specification and claims.

In the drawings: Figure l is a perspective view of `the reinforcing member. Y Fig. 2 is a plan view show.-

Ving two or more of the. membersjin adjacent relation.

Fig. 3`is a 4sectional view through'a floor orV ceiling showing the reinforcement embedded in the concrete and in turn supported'bythe usual kLbearns. Fig. 4 is a detail showing. the manner of securing the binding rod or wire in the web of the.l.bar.V Fig. 5 is a variation showing the T-bar crimped to increase its bearing surv face in the,concrete. Fig.. '6'is a cross-sectional view through' a column showing-the binding wires'forrned on the arc of a circle to,v adapt them for purposes of this and like constructions. is a perspective view of the reinforeement'employed in Fig. 6. Fig. 8 is a perspective yi'ey;` showing a portion of the concrete floor. and ceilinglbrokeniaway to expose the reinforcing members andthe manner of engaging the naar with the I-beamsl Fig. 9 is a @discution of the form of the binding wires employed in the reinforcing member. Fig. l0 is another modification of the same. Fig. 11" shows the ends ofthe binding wire 'bent upward in the form of a loop to increase its crosssectional. reinforcing area. Fig. 12 is an elevation of the reinforcing member shown inv Fig. 11 looking to ward the ends of the bindingwire. Fig. 13 shows a modification in theform ofv the T-bar for `supporting thebinding wire.

The object of 'my invention is to construct a reinforcement which will be inexpensive to manufacture and readily adapted for use in different forms of concrete construction. Other advantages will hereafter appear. f y

lReferring to the letters of reference shown in thel drawings, A is an ordinary T-bar, though other forms of commercial iron maybe employed if desired. At

suitable intervals throughout its length, depressions a,-or perforations, if .desired,-are made in the web of the bar to receive the binding wire B, arranged to pro- /ject in opposite directions from the web of the bar.

-When the r-bars are assembled in adjacent relation, ythe return bends b of the binding wire may overlap,

as shown in Fig. 2, and if desired, locked-together by4 tie wires (JQ-or, as indicated in'dotted lines in the same figure, the return bends` mayfpr'oject into the open .end

he locked together wherethe'wiree abut;

of the loop of the lopposite binding wire fl'nd,if desired,

As shown in Figs. 3 andS of ,the drawingsglthe T-bars are linked together ov'er the I-beamsC, as'indicated at i D, the T-bars ybeing perforated at their ends,'o'r provided with a return bend a', as indicated in the'yiews re' ferred to. When used in reinforcing concrete columns or other like structures, the binding wires B are formed on an arc of a circle, as shown in Figs. r6. and 7 of the drawings, to more particularly adapt them to the necessities of this construction.

By crimping the T-bar supporting the binding wires,

I greatly increase the binding surface exposed to the concrete and thereby add to its efficiency.

While I have shown the web of the T-bars cu't with :LU-shaped opening to receive the binding wires, the

construction is such that the edges of the web are closed over the binding wire Ato secure it in the T. In place of the depressions in the T-bar the web may be perforated tov receive the Wire, being afterwards swaged to secure it the web ofthe bar. I prefer, however, the construction shown as it ismore simple, and cheaper `to manufacture.

In the modification shown in Fig. 9the binding wire is made of short sections, each alternate wire being longer thanpthat on either side in order that the adjacent T-bar with its series of binding wires may interlock-in order to afford an unbroken reinforcement whenembeddcd in the concrete.

In the form shown in Fig. 10, the binding wires are of equallength, but when the reinforcing members are placed in adjacent relation they are placed so thaty thebinding wires will interlock in order to presentr loops at vthe end of the binding wire' are turned at right angles in order to widen the reinforcing area.

It will be seen that by the employment of my'in-y vention the entire concrete area is knit together, it being impossible for a crack'to extendin a `direction not covered by reinforcing wire.

Having thus described my invention, what I claim.

1. A reinforcement for concrete construction consisting.' of'a supporting bar Including s base and also a. web portion, the web portion havlng a series of p alrs of fingers?.

along its upper edge, said fingers being bendable ln Athe longitudinal .plane'of the' web, land a continuous binding ingersythe wire projecting upon opposite sides of the web' 4 beyond the 'outer opposite edges of the base' portion of the bur.

2. A reinforcement for concrete construction consisting` of supporting bars en'ch including a buse and also a web portion having a series of pairs of fingers along its upper edge, the bars being rranged ln parallelism and the ilngers of each web being bendable in the longitudinal plane of the web, a continuous binding wire seeuredto the web of each bnr betweenthe corresponding fingers, each wire projecting upon opposite sides of the web beyond the louter opposite longitudinal edges loi? thebase of the corresponding bar, the wire of one bar overlapping the wire of the other bar, and means for connecting the overlapping por tions of the wires together'.

3 A 4reinforcement for concrete construction consisting of a beam including a base, supporting lmrs arranged in nlinement upon opposite sides of the beam with the inner ends of the bars resting upon tlie buse, the ends ofthe bnrs adjacent the beam having eyes therein; menus passed through the eyes of the bars and bridging the beam to secure the beam and bars together, und binding wires secured to each bai', the binding wires of adjacent bars upon each side of the beam overlapping it at intervals, and means lthrough tile eyes of ille bars and bridging eeepes for connecting,r the overlapping parte of the binding Wires together.

4. A reinforcement for concrete construction consisting:y

of a beam including,r a base, supporting bui-ri :1i-ranged in alinement upon opposite sides of the benin with the inner ends of the bnrs resting upon the buse, the endo oi' the bars adjacent the benin having eyes therein, menne passed the beam to secure the benin and bars together, euch bur including n buse nnd mso :1 web portion Moving a series ofiinuers in its upper educ benduble longitudinally of the web, und u continuous binding; kWire secured io tbe web oi euch bur oetween the corresponding lingers, each wire projecting upon opposite sides of the web beyond the outer opposite longitudinal edges of the corresponding bur, the Wire of one bar overlapping at intervals the wire oi the adjacent bar upon corresponding sides of said benin, and menus for connecting the overlapping: purts of the wires together.

ln testllnpnx1 whereof, I sign this speciicutlon in the presence of two witnesses.

JOHN S. BARNES. Witnesses:

S. E. THOMAS, HENRY E. Vinnimn'r 

